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2 years ago

Are bivalves protostomes or deuterostomes?

1 answer:

5 0

Bivalves are protostomes, as they belong the to phyla Protostomia. They are freshwater/marine molluscs, whose body is covered by a protecting shell. They do not have a head, and some of their examples include oysters, clams, mussels etc.

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What is the definition of wildlife?

vredina [299]

Answer:

wild animals collectively; the native fauna (and sometimes flora) of a region.

Explanation:

I hope this helped :)

7 0

2 years ago

Read 2 more answers

PLSSS HELP IF YOU TURLY KNOW THISS

VikaD [51]

Answer:

$\huge \text{\boxed{Hello, There! :)}}$

$\textbf{ \textit{The Correct Answer is Option A.}}}$

Explanation:

The anatomy of a child's brains can be divided into three parts:

- Cerebrum;

- Brainserm;

- Cerebellum.

The Cerebrum has the Cerebral cortex that is responsible for functions as coordination of movement, temperature, touch, vision, hearing, speech and language, judgment, reasoning, emotions and memory.

The Brainstem includes the medulla, midbrain, and the pons, being responsible for most of the involuntary movements.

The Cerebellum coordinate vonluntary muscle movements, and the balance of the body.

The part that stores the memory for a toddler as they are learning to walk is the cerebral cortex while the cerebellum coordinate and balance their movement to improve the walk with time.

Hope this Helps!
Have a wonderful day!

 $\boxed{InLoveWithNature}$ 

6 0

2 years ago

This image shows a stream of positively charged particles being directed at gold foil. The positively charged particles are call

maksim [4K]

Answer:

D.) When the dense, positive alpha particle passes close to a positive nucleus of gold, the alpha particle repels and hits the screen at point X.

Explanation:

7 0

2 years ago

Read 2 more answers

What are histones, and how are they arranged in nucleosomes? Drag the terms on the left to the appropriate blanks on the right t

Eva8 [605]

Answer:

1) c. five

2) a. lysine and arginine

3) g. two

4) d. four

Explanation:

A nucleotide can be defined as an organic molecule which forms the building block of nucleic acid such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

Basically, nucleotide comprises of the following parts;

1. Nitrogenous base: this includes adenine (A), thymine (T), guanine (G), and cytosine (C) which are mainly found in the DNA while adenine (A), guanine (G), uracil (U) and cytosine (C) are found in the RNA.

2. A phosphate group.

3. A penrose sugar: it is either deoxyribose in DNA or ribose in RNA.

The two parts or chemical components of a nucleotide which do not change throughout the structure of DNA are;

I. Five-Carbon Sugar also known as deoxyribose and it has hydrogen on its second carbon.

II. Phosphate: this is the structural backbone that provides support to DNA.

Histones are a group of highly basic proteins that are mainly associated with deoxyribonucleic acid (DNA) in the nucleus of a living organism and then condense it to chromatin.

Histones include five main classes of relatively small basic proteins containing relatively large amounts of lysine and arginine. Nucleosomes are made of two each of four types of histones.

4 0

3 years ago

When the term biceps, triceps, or quadriceps forms part of a muscle's name, what does it tell you about the muscle? the muscle h

tekilochka [14]

Answer:

The muscle has two, three, or four origins, respectively.

Explanation

A muscle is an organ composed of muscle tissue that contract to facilitate a particular movement
biceps,triceps and quadriceps are types of skeletal muscles since they use bones as levers
They differ in that; the biceps have two origins, triceps have three origins and quadriceps have four origin.
Bicep is a two headed muscle thus said to have two origins ,triceps have three muscle heads and therefore have three separate origin attachment point while quadriceps are made of four muscles heads hence have four origins.

6 0

2 years ago