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3 years ago

Can a woman lactate without being pregnant ?

Biology

1 answer:

Maslowich3 years ago

4 0

Answer:

Hormones signal the mammary glands in your body to start producing milk to feed the baby. But it's also possible for women who have never been pregnant — and even men — to lactate

Explanation:

read the answer please

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t elevatUsing species C as a reference, you find that there are more genetic differences between species A and species C than be

Julli [10]

Answer:

Speciation was allopatric or peripatric, but would depend on the number of individuals that dispersed from the original populations.

Explanation:

There are two types of speciation: allopatric and peripatric.
Allopatric speciation occurs when the species of same population gets isolated that results in lack of gene flow.
From the isolated population, new species are formed then it is known as the peripatric speciation.
All these isolation of populations and formation of new species depends upon the initial or original group of species that was dispersed.

5 0

3 years ago

Analyze the relationships between the anatomical structures and physiological functions of the muscular system by matching the t

Afina-wow [57]

Answer:

a. Endomysium 8. The layer of connective tissue that surrounds an individual muscle fiber

b. Epimysium 6. The layer of connective tissue that surrounds a skeletal muscle

c. Fascia 3. Connective tissue located between adjacent muscles

d. Fascicle 12. A small bundle of muscle fibers within a muscle

e. Myosin 11. Protein found within a thick filament

f. Perimysium 4. The layer of connective tissue that separates a muscle into small bundles

g. Sarcolemma 5. The plasma membrane of a muscle fiber

h. Sarcomere 7. Unit of alternating light and dark striations between discs (lines)

i. Sarcoplasm 2. The cytoplasm of a muscle fiber

j. Sarcoplasmic reticulum 9. A cellular organelle in muscle fiber corresponding to the endoplasmic

k. Tendon 10. The cordlike part that attaches a muscle to a bone

l. Transverse (T) tubule reticulum 1. Membranous channel extending inward from muscle fiber membrane

Explanation:

A muscle has around it epimysium, which is connective tissue. Inside the epimysium, there are fascicles, and around each of them, there is perimysium. Inside every fascicle, there are muscle fibers, each of them is surrounded by a connective tissue called endomysium. Between every muscle, there is also connective tissue and is called fascia. The connective tissue has vessels and provides support.

The muscle cells are called fibers. They have a membrane, the sarcolemma, a cytoplasm, the sarcoplasm, and a sarcomere, which is the functional unit of the fiber, in other words, it is the structure responsible for the contraction. The sarcomere has different bands made of thick filaments of myosin and thin filaments of actin. They are the light and dark striations that go from disc z to disc z when we observe the sarcomere under a special microscope. The sarcoplasmic reticulum is the place that stores the calcium necessary for the contraction of the fiber, and the transverse tubule reticulum allows the contraction of various fibers since they spread the action potential amongst fibers.

7 0

3 years ago

It is important that we take care of our planet____

seraphim [82]

Answer:

yes

Explanation:

In less than eight months, we used more natural resources than the planet is able to produce in a 12 month period.Of course we need to take care of it. Hope it helps.

6 0

4 years ago

Please help !!!!!!!!!!!!!!

Leno4ka [110]

The answer is stratosphere.

6 0

3 years ago

What step has not yet been accomplished by scientists researching the origin of life on Earth?

Andrew [12]

The formation of protobionts that use DNA to direct the polymerization of amino acids have not yet been researched by scientist in order to learn about the origins of life on Earth

4 0

3 years ago