The mammalian sperm cell consists of a head, a midpiece and a tail. The head contains the nucleus with densely coiled chromatin fibres, surrounded anteriorly by an acrosome, which contains enzymes used for penetrating the female egg.
Answer:
1. Apoplastic
2. Symplastic
3. Symplastic
4. Apoplastic
Explanation:
The interconnected porous cell walls of plant cells make apoplast along which water is allowed to move freely. Symplast refers to the path made up of interconnected cytoplasm of many plant cells connected by plasmodesmata. Therefore, water and dissolved minerals enter the root cortex from the epidermis in the solution can move through symplast and apoplast till endodermis.
Water and dissolved minerals present in the cytoplasm of cortical cells move from one cell to next via plasmodesmata (the symplast) while the ones present in their cell walls and intercellular space move through apoplast. The presence of casparian strips in the endodermal cell wall does not allow the movement of water and minerals through the apoplast.
Answer:
Minimal media + glucose + streptomycin
Explanation:
Those capable of synthesizing galactose can grow in minimal media, the availability of streptomycin will destroy those who are susceptible to the antibiotic, whereas glucose, a carbon source from which galactose may be produced and will encourage growth.
Therefore:
The medium should not include galactose when selecting for gal⁺.
Streptomycin should be present in the medium to select against 
.
The medium to choose is: Minimal media + glucose + streptomycin.
<span>Adaptations are formed by the random mutations of the cell of an organism by which natural selection has forced them to. This enables the organism to survive and thrive.</span>
Answer:B) Cones open and release seeds .
Explanation:idk man I got it right so like why not put it here because it might help other people
