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kobusy [5.1K]
3 years ago
7

Jan noticed that when she put a tomato in water, it sank. When she put an apple in water, it floated. Why did the tomato sink wh

ile the apple floated?
Biology
1 answer:
Harman [31]3 years ago
7 0
The tomato had a higher density than the water. The apple had a lower density than the water.
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What are the ACSM recommendations for cardiovascular health?
forsale [732]

Answer:

C. 30 min minutes a day 5 days a week of moderate-intensity exercise or 20 minutes a day 3 days a week of vigorously intense exercise

Explanation:

The combination of aerobic and muscle-strengthening physical activity is crucial for a healthy lifestyle. Regular physical activity can help to reduce the risk of cardiovascular and chronic diseases, disability and premature mortality.  

Adults need a moderate physical aerobic activity for a minimum of 30 minutes 5 days a week or 20 minutes of vigorous-intensity aerobic activity. A combination of these two can be done to achieve this goal.

A moderate-intensity physical activity, like <u>fast walking</u>, should produce a noticeable rise in heart rate and breathing. On the other hand, a vigorous-intensity activity, like <u>running</u>, should produce a large and bigger change in heart rate and breathing.

The muscle-strengthening activity, should be performed for a minimum of 2 days a week on two or more nonconsecutive days.

3 0
3 years ago
How do you know which bases to use when you transcribe the DNA sequence to mRNA codons
LekaFEV [45]

Answer:

You always use the base pairing rule. When pairing RNA to DNA, use complementary base pairs. Just always be sure to use uracil in the RNA instead of thymine.

Explanation:

4 0
4 years ago
A flea is a tiny wingless insect with a flat body designed to easily navigate through
11111nata11111 [884]

Answer:

A. Parasitism, because the flee is benefitting and the mammal is harmed.

Explanation:

Parasitism is when one organism which is a parasite lives on another which is the host, and gaining benefits from it and at the same time maiming havoc to it. Parasitism is common among living organisms. Animals are most times the host to a range of parasitic organisms which include viruses, bacteria, fungi,protozoa, also flea, tick, mites etc.

Parasites like fleas, tick and leeches live on the body surface of their host, which is make them ectoparasites while those that live inside their hosts are endoparasites.

6 0
4 years ago
The horticulturalist plans to cross a geranium that is true-breeding for red flowers with a geranium that is true breeding for w
Arte-miy333 [17]

Answer:

Since both plants are true breeding, it means that both are homozygous for the allele of the trait, that is flower color. The geranium plant with red flowers can be denoted as RR and the plant with white flowers can be denoted by WW. Since it is not mentioned in the question that which trait is dominant over  the other, but one thing is sure that all the offspring will look alike in color, because their genotype will be same, RW.

The punnet square that best describes them is in attached figure, please see.

Hope it helps!

8 0
3 years ago
How does an ATP molecule release
iren [92.7K]

Answer:

The correct answer is - B. breaking the bond between the 2nd and 3rd.

Explanation:

ATP molecule is known as cellular currency as it provides energy for cellular functions. ATP released energy when one phosphate group is removed or eliminated by breaking a phosphoanhydride bond. The rebreaking of this bond and removal is known as hydrolysis, and ATP is converted to adenosine diphosphate (ADP).

Breaking the bond between the 2nd and 3rd phosphate groups provides a very high amount of energy. There is also additional energy released when phosphate is removed from ADP to form adenosine monophosphate (AMP).

6 0
3 years ago
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