Answer:
Digestive enzymes helps in digesting complex food materials into simpler molecules for absorption by the body.
HOPE THIS HELPED!
A.
ligaments and tendons
B.
arteries and veins
C.
muscles and joints
D.
bones and cartilage
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Which organ is being described in this statement?
If this organ malfunctions, all other body systems would be deprived of nutrients.
A.
urethra
B.
brain
C.
lungs
D.
stomach
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Which statement is correct about the growth and development of vertebrates?
A.
The larva will undergo many changes after leaving its cocoon.
B.
A fertilized egg will undergo many changes and become an embryo.
C.
The gamete will undergo many changes after the egg is fertilized.
D.
The pupa will undergo many changes within a cocoon.
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Which is produced immediately after a plant sperm cell fertilizes an egg cell?
A.
plant nutrients
B.
a zygote
C.
a spore
D.
sweet nectar
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Which terms are used for gametes that are needed for reproduction in vertebrate animals?
A.
sperm and eggs
B.
seeds and spores
C.
buds and offspring
D.
antibodies and pathogens
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Which activity distinguishes the larva stage from the pupa stage of an insect?
A.
locating shelter
B.
making its own food
C.
reproducing
D.
feeding
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Which statement describes the life cycle of a butterfly?
A.
sheds its exoskeleton
B.
incomplete metamorphosis
C.
stages of infancy and puberty
D.
complete metamorphosis
Answer: Forming the embryo and providing DNA.
Explanation: The egg is a cell that is used to reproduce. It is the very beginning of what will become the embryo and eventually the baby. The sperm fertilizes the egg and contributes 50% of the embryo DNA to the ova (the other 50% of DNA comes from the egg, however sperm only contributes DNA to the egg during the fertilization process whereas the egg has a much more important role). The sperm and egg meet, the egg becomes fertilized and loaded with the DNA it needs to form. The egg provides nutrients needed for the embryo to grow until it is fully gestated.
Answer:
Option (2).
Explanation:
Enzymes are made of proteins that have the specific amino acid sequences. Enzymes have well determined 3D shape and work in their specific shape and at specific physical and chemical condition.
Enzymes may acts as catalyst that can increase the rate of the bio chemical reaction. Each enzyme is specific for one reaction and lowers the activation energy of the reaction. Enzymes increases the effective collision between the substrate molecule and increases reaction rate.
Thus, the correct answer is option (2).
Answer:
not a scientific question, because it asks about what people think instead of how nature works
Explanation:
The question is not scientific, since it deals with people's point of view rather than scientific facts. In that respect, people are often suspicious of the words mutations because they cause changes in genes of living creatures. However, they are usually innocuous and can even help organisms to subsist.
Mutations is when there is a permanent change in the DNA sequence in a cell's gene or chromosome . This can cause many deformations in organisms.