Answer:
Prenatal development
Explanation:
Prenatal development is the phase of growth and development in which a single-celled zygote grows into an embryo followed by the fetus and then a baby in the womb of a lady.
The process of prenatal development is very complicated which is divided into three phases:
1. Germinal phase: during the first two weeks after the conception in which the single-celled zygote develops.
2. Embryonic period: during which the zygote grows into the embryo and lasts from the second week to the eighth week.
3. Fetal period: During which the embryo grows to form a fetus which matures into a baby and is born.
Thus, Prenatal development is the correct answer.
Answer:
Prenatal.
Explanation:
The sexual reproduction may be defined the process of fusion of the male sperm and female ovum that leads to the formation of the zygote. Zygote is diploid in nature.
The prenatal development includes all the stages that are involved in the development of the single cell till the completion of the nine months of the fetus. The development of all organs and the process of the cell specification all occurs in the prenatal development stage.
Thus, the answer is prenatal.
Evergreens are plants that maintain their leaves in all seasons and include trees such as Conifers, Broadleaf evergreens and Evergreen shrubs
Conifers: Conifers are the most common type of evergreen tree. They have needle-like leaves that are arranged in clusters. Some common conifers include pines, firs, and spruces.
Broadleaf evergreens: Broadleaf evergreens have broad, flat leaves that are arranged in opposite or alternate patterns. Some common broadleaf evergreens include holly, rhododendron, and laurel.
Evergreen shrubs: Evergreen shrubs are smaller than trees, but they still retain their leaves in all seasons. Some common evergreen shrubs include juniper, boxwood, and holly.
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Evergreens are plants that maintain their leaves in all seasons and include trees such as Kauri, Sequoia, Coconut, Real Yellowwood, Australian Tree Fern, Live Oak, Shamel Ash, Eucalyptus, Southern Magnolia and Pine etc.
Further Explanation
Evergreen plants
In organic science, an evergreen is a plant that has leaves during the time that are constantly green. This is genuine regardless of whether the plant holds its foliage just in warm atmospheres, and appears differently in relation to deciduous plants, which totally lose their foliage throughout the winter or dry season.
Types of Evergreen trees
They are of different types some of them are given below.
Cypress Trees
They can be perceived by their pyramidal molded little, adjusted, woody cones, shoots and scale-like leaves. Their foliage can extend from yellowish-green to green or a grayish shading. They can arrive at developing statures of up to 60 feet.
Spruce Trees
They are pyramidal trees than can be known for their cone-like structure and whorled branches. The needles on these trees are appended to the branches in a winding like development. Tidy trees can extend from 5 feet tall for diminutive person trees, and to statures of 60+ feet for bigger trees.
Cryptomeria Trees
These trees are known for their attractive cone-like shape and rich, ruddy darker bark which regularly strips off in strips. These enormous trees can arrive at statures of 35 to 45 feet. They additionally have needle-like leaves that structure spirally scales on their branches.
Bamboo Grass
Bamboo is a lovely tropical evergreen that is a piece of the perpetual grass family. They're one of the quickest developing evergreens around the world. They can be perceived by their empty stems that develop in groups.
Answer details
Subject: Biology
Level: High school
Keywords
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b. False
True
Africa experiences a high level of air pollution because it has more old vehicles on the road than industrialized regions do. This fact is because of the less availabilty of new technologies, due to poverty and other socio-political factors. The environment will likely suffer more too, compromising ever more a region that suffers from different problems.
They are analogous organ because they have similar functions, but different evolutionary origins.
Closely resembling organs are the organs that are different physically in structure yet carry out a similar role. They are engaged with concurrent development.
Instances of Closely resembling Organs
Wings of Bats, Birds and Butterflies
This organ presents the three unique life forms that carry out a similar flying role however are different in structure. In birds, the wing structure is framed of bones covered with feathers. The wings of bugs are only the expansion of the integuments, which is the peripheral layer of any creature that safeguards the body. In bats, the wings are just the collapsed skin of their fingers.
Yam and Potato
These plant parts are only capacity types of starch and plant items, however physically, both are not the same as each other. Yam is a changed root that carries out the role of putting away starch for the plants. A potato is basically a changed stem that likewise carries out the role of putting away starch for the plant.
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B. proto-oncogenes.
C. cancer genes.
D. telomeres.
Answer:
The correct answer is option B. "proto-oncogenes".
Explanation:
Tumor suppressor genes and proto-oncogenes are two types of genes that can cause the development of cancer cells if they suffer a mutation. The main difference between tumor suppressor genes and proto-oncogenes is the way they cause cancer. If tumor suppressor genes are inactivated they produce cancer cells, while if proto-oncogenes are activated is when they produce cancer cells.
Answer: Asexual reproduction
Asexual reproduction is a mode of reproduction which involves a single parent which produces offsprings. This mode of reproduction do not require gamete formation. This occurs in simple organisms. The offsprings produce by this method are the clone of their parents which means they exhibit same characteristics. Vegetative reproduction is a type of asexual reproduction. In this method plants are grown by utilizing their parts. Runner is the vegetative part of strawberry which provides support to the strawberry plant by acquiring more space on the soil surface. These runners develop new roots and are responsible for the growth of new daughter plants. Plants are generating from a single part plant by utilizing vegetative part. Hence, runners are a type of asexual reproduction in strawberry plants.