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Virty [35]
3 years ago
6

Echinoderms have a(n)

Biology
1 answer:
JulsSmile [24]3 years ago
8 0
I think it mite be d.....hope this helps!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Most countries have outlawed whaling, but some countries have few or no laws protecting whales. Why are conservation groups push
Gala2k [10]

The answer is D unrestricted whaling could lead to their extinction.


4 0
4 years ago
Read 2 more answers
Mutation can be an adequate source of variation. Suggest one reason for this?
Ivahew [28]
It can change one thing into onether witch sometimes can be bad
3 0
3 years ago
1)Most of the food we eat can be influenced by whom?<br><br> 2)Food choices come from what?
Fantom [35]

Answer:

1) Hunger, savor, appetite. Three main biological reasons why we eat. Also, the economic ability to pay for the food. And the fisical capability to go and buy food, to cook.

2) Our physiological needs are the main reason why we choose food. People need energy to survive.

Everyone would like to have the possibility to eat what he wants. But food choices depend on the financial situation, social class, and preferences.

That is why poor people or people who have less money to spend on food, often eat food that can feed more people but it doesn’t have nutritional values. When people have money, they immediately have a wider spectrum of groceries that can choose from.

Explanation:

Savour is equal to enjoying. When people are not hungry they are happier. We choose what to eat depending on the look, taste, smell, texture. As sweets smell good, people consider them the most attractive food. Food is not just the source of nutrition, it is also the source of satisfaction.

5 0
4 years ago
DNA polymerase breaks bonds between​
goldfiish [28.3K]

Answer:

The movement of the replication fork is accomplished by the enzyme helicase, which breaks hydrogen bonds between the paired bases and unwinds the double helix ahead of the advancing DNA polymerase.

4 0
3 years ago
Members of the phylum Actinobacteria have had a profound impact on human health over the course of civilization. One member of t
Drupady [299]

Answer:

The correct answer would be - mycobacterium, and streptomyces.

Explanation:

Actinobacteria is a phylum that consists of a group of gram-positive bacteria with cytosine and guanine content in their DNA. These bacteria can be aquatic or land bacteria. Actinobacteria do not have cell wall however they make a non-sptate and mycelium.

Mycobacterium is one of the genera of the actinobacterium phylum. This genus includes pathogenic species in it that cause deadly diseases in humans and other mammals such as leprosy and tuberculosis Whereas streptomyces is another genus of the actinobacteria that is yielded the very first drug to fight with the ancient scourge.

Thus, the correct answer is - mycobacterium and streptomyces.

8 0
3 years ago
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