Sự ra đời của học thuyết tế bào không có ý nghĩa nào sau đây?
A. Khẳng định mọi sinh vật sống đều được cấu tạo từ tế bào.
B. Góp phần chứng minh được sự thống nhất của sinh giới.
C. Góp phần chứng minh được sự đa dạng của sinh giới.
D. Đặt nền tảng cho việc nghiên cứu về tế bào và cơ thể sinh vật.
Hãy suy nghĩ và trả lời câu hỏi trước khi xem đáp án
Do đó, đáp án **C** là đáp án đúng.
Câu hỏi liên quan
Cho các mệnh đề kéo theo dưới đây:
(1) “Nếu tam giác ABC vuông tại A thì AB2 + AC2 = BC2”.
(2) “Nếu ABCD là hình thoi thì ABCD cũng là hình vuông”.
(3) “Tam giác ABC đều thì tam giác ABC có AB = AC”.
Có bao nhiêu mệnh đề đúng?
Chọn ý đúng: Công nghệ in 3D:
Hình ảnh thơ nào không xuất hiện trong hai câu thực của bài thơ Cảm xúc bài thơ - Đỗ Phủ?
Để thực hiện mô hình quản lí danh sách tên quận/huyện của các tỉnh thành phố em phải xác định mối quan hệ giữa?
Đồ thị nào sau đây là của chuyển động biến đổi?
Nhận định nào sau đây thể hiện đặc điểm hoạt động của Hội đồng nhân dân?
Một lớp học có 30 học sinh nam và 10 học sinh nữ. Giáo viên chủ nhiệm cần chọn một ban cán sự lớp gồm có 4 học sinh.
Tính xác suất ban cán sự có ít nhất một học sinh nữ.
Read the following passage about the impact of social media on mental health and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
[I] In recent years, social media platforms have become a central part of daily life, offering users countless ways to connect, share, and communicate. [II] While these platforms offer many advantages, experts have noted rising concerns about their effects on mental health, particularly among young people (Smith & Anderson, 2018). [III] Studies reveal that excessive social media use can contribute to feelings of anxiety, depression, and loneliness, despite its intention to promote connection and social interaction (Twenge & Campbell, 2019). [IV]
A primary reason for these mental health concerns is the tendency for social media users to compare themselves to others. Platforms like Instagram and Facebook often highlight idealized lifestyles, leading users to feel inadequate about their own lives. Additionally, the constant notifications and messages contribute to a "fear of missing out," or FOMO, which keeps individuals in a cycle of checking their phones, often reducing the quality of sleep and overall well-being.
There is also a growing body of research suggesting a link between social media use and decreased attention spans. When users frequently switch between apps and notifications, their ability to focus for extended periods may diminish (Rosen, 2019). This shift in attention can interfere with productivity, especially in academic and professional settings, where sustained focus is essential.
Addressing these challenges requires a multi-faceted approach. Some mental health professionals suggest limiting screen time and setting boundaries, such as "device-free" hours before bedtime. Others recommend engaging in offline activities, like reading or exercising, to reduce dependence on social media and build healthier habits. According to psychologists, such strategies can enhance mental resilience and allow for more meaningful, balanced relationships (Robinson & Smith, 2020).
Which of the following best paraphrases the underlined sentence in paragraph 4?
Rửa xe, đánh bóng vỏ xe là công việc bảo dưỡng cơ bản nào?
Phương án nào sau đây chỉ ra vaccine DNA được đánh giá là an toàn hơn vaccine truyền thống?
Người ta đánh giá sự phát triển của máy tính điện tử số qua các giai đoạn dựa vào tiêu chí nào trong các tiêu chí sau đây?
Chọn phương án đúng nhất. Pha ban đầu của dao động điều hoà phụ thuộc vào
Read the following leaflet and mark the letter A, B, C, or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 7 to 12.
STAY SAFE: UNDERSTANDING SCAMS AND HOW TO PREVENT THEM
What is a scam?
A scam is a deceptive scheme delivered through digital communications with the intent to steal money or personal information. These schemes take many forms, including online fraud, phishing emails, and fake lotteries. In (7) _____ words, scams are tricks that prey on your trust and can lead to significant financial loss.
Common types of scams
- Phishing: fraudulent emails or messages that appear to be from legitimate sources, tricking you into (8) _____ personal information.
- Lottery scams: notifications claiming you’ve won a (9) _____, requiring you to pay a fee to claim it.
- Other scams: these can include fake charities, advance-fee scams, and online auction fraud, each designed to exploit individuals in different ways.
Tips to prevent scams
- Verify sources: always check the (10) ____ of requestions for personal information.
- Root out suspicious communications: don’t engage with unknown contacts and report any suspicious emails or calls to the authorities (11) _____ potential scams.
- Protect your information: use strong passwords and enable two-factor authentication on your accounts to add an extra (12) ______ of security.
Read the following passage about the Second Acts That Inspire and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
Life often presents us with unexpected challenges that force us back to the drawing board. Whether due to personal setbacks, career changes, or unforeseen circumstances, the courage to begin again can lead to remarkable transformations. Many inspiring individuals have shown that it's never too late to reinvent oneself and pursue new dreams. Throughout history, countless people have overcome seemingly impossible situations through sheer determination.
[I] Take J.K. Rowling, for instance. Before becoming a literary sensation, she was a struggling single mother living on welfare. [II] Her determination eventually paid off when her books became a global phenomenon, proving that setbacks can become stepping stones to success. [III] This remarkable turnaround demonstrates how resilience and unwavering belief in oneself can overcome seemingly insurmountable obstacles. Despite facing depression and financial hardship, she never gave up on her dreams. [IV]
Colonel Harland Sanders' story is another testament to the power of starting anew. At the age of 65, when most people contemplate retirement, he found himself struggling financially after his restaurant failed. Instead of giving up, he traveled across America, sleeping in his car while pitching his chicken recipe to restaurant owners. His recipe for success wasn't just about the perfect blend of herbs and spices; it was about persistence and determination. After facing over 1,000 rejections, he finally established Kentucky Fried Chicken, which grew into a global empire. His unwavering spirit and dedication inspired generations of entrepreneurs worldwide.
These inspiring stories remind us that failure is not final, but rather a chance to redirect our path. Every setback carries the seed of an equal or greater opportunity, and sometimes the end of one chapter is simply the beginning of a better one. The key lies in having the courage to take that first step, even when the future seems uncertain. As these remarkable individuals have shown, it's never too late to rewrite your story and create a powerful second act. Their journeys teach us that persistence and courage ultimately lead to success.
Which of the following best paraphrases the underlined sentence in paragraph 4?
Read the following leaflet and mark the letter A, B, C or D on your answer sheet to indicate the option that bestfits each of the numbered blanks from 7 to 12.
Join Our Student Exchange Program!
Are you eager to explore a new culture, improve your language skills, and make lifelong friends? Our Student Exchange Program is the perfect opportunity for you!
Students from our school will have the chance to study abroad while welcoming (7) ______ students into their homes. This is a great way to experience different educational systems and lifestyles.
During the program, you will (8) ______ new challenges, such as adapting to a new environment and communicating in a foreign language. (9) ______, these experiences will help you grow both academically and personally.
Participants will receive full (10) ______, including accommodation, meals, and tuition fees.
Instead of traveling as a tourist, why not become a local for a semester? This exchange allows you to fully immerse yourself in a new culture.
This program helps students develop essential skills such as independence, adaptability, and (11) ______.
Apply now and take the first step towards an unforgettable experience in international (12) ______!
Trong mặt phẳng \(Oxy\), đường thẳng \(\left( d \right):\,\,ax + by + c = 0,\,\,\,\left( {{a^2} + {b^2} \ne 0} \right)\). Vectơ nào sau đây là một vectơ pháp tuyến của đường thẳng \(\left( d \right)\)?
Thay đổi lớn nhất trong cải cách hành chính đưới thời Minh Mạng là
Khối lượng của nguyên tử oxygen là 16 amu. Vậy khối lượng của nguyên tử oxygen tính theo đơn vị gram là
Tập hợp nào sau đây là cách viết khác của tập hợp C={x∈R2<x≤5}?
Read the following passage about beginning a lifelong journey and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 23 to 30.
Lifelong learning is the continuous pursuit of knowledge and skills throughout a person's life. In today's world, where technology is evolving rapidly, lifelong learning is essential for both personal growth and career development. But just how does one go about becoming a lifelong learner?
The first step in becoming a lifelong learner is to develop a growth mindset. This means believing that your abilities can be developed through hard work, dedication and commitment. Embrace challenges, view mistakes as opportunities to learn, and be open to new ideas and perspectives. Adopting a growth mindset will help you approach learning with a positive attitude and a desire to improve.
Setting achievable goals is also an important part of lifelong learning. Goals give direction and motivation to your learning journey. First, identify areas of interest and choose specific skills or knowledge that you want to develop. Second, break your goals down into smaller, more manageable tasks and track your progress. Finally, celebrate your accomplishments along the way to stay motivated.
People learn in different ways, so it's also essential that you find the methods that work best for you. You can do this by trying out a variety of different learning methods, such as reading, watching videos, attending lectures and engaging in hands-on practice. At the same time, you should also experiment with different learning tools and techniques until you find what works best for you. Becoming a lifelong learner is a continuous process that requires dedication and effort. Developing a growth mindset, setting achievable goals, and using a variety of learning methods are essential steps to becoming a successful lifelong learner. By embracing learning as a lifelong journey, you will continue to grow, develop new skills, and stay relevant in today's ever-changing world.
(Adapted from Bright)
The word This in paragraph 2 refers to _____.